The name Sauropoda is used for infraordo from saurischian dinosaurs. These animals have very long neck and tail sizes and small head sizes when compared to their body size. It has thick legs and is shaped like a pillar. The shape of this animal's teeth are like pegs, saurupoda dinosaur fossils are found on all continents, even on the Antarctic continent.

Sauropoda dinosaurs are known for their large size. In this group there are the largest land animals that have ever lived on the surface of the earth. Some genus that is widely known to people in this group are Apatosaurus (Brontosaurus), Brachiosaurus, and Diplodocus.

According to experts, Sauropoda first appeared in the era of the late trias. This animal has many similarities with Prosauropoda so scientists who follow the evolutionary school regard Prosauropod descent.

At the end of the Jurassic period (about 50 million years ago) Sauropods had experienced a wide spread on the earth, including brachiosaurus and diplodocus. At the end of the lime period, this group of animals was replaced by titanosaurus. Like dinosaurs in general, titanosaurus eventually went extinct.